Rika moves in with Naoya and the others, and insists that sleeping in the same room with him in a non-sexual fashion should be completely permissible. Naoya agrees, but only if all the girls get to take turns sleeping in his room in a non-sexual fashion.
Our promise was that she'd move on 
if I haven't fallen for her by then.
.يقضي وعدنا بأن تتخطى الأمر إلم أقع في حبها قبل ذلك
Der Deal ist, dass sie es aufgeben wird,
falls ich mich dennoch nicht in sie verliebe.
Acordamos que se iría si no
me enamoraba de ella para entonces.
Prometimos que se iría si no
me enamoraba de ella para entonces.
et en échange, abandonner
si je ne tombe pas amoureux.
Ha promesso che se ne farà una ragione 
se per allora non mi sarò innamorato di lei.
O combinado é que ela seguirá em frente
se eu não me apaixonar por ela até lá.
но если я не влюблюсь до конца года,
она оставит меня в покое.